11/3/09
Post date: Nov 04, 2009 2:38:36 PM
No bell ringer
Read pages 205-210
Discuss key terms, answer questions in small groups
Define wi = wo
What does MA measure?
Explain the equation MA = Fr / Fe
How are IMA and MA different?
Explain efficiency = wo / wi
What are the 6 simple machines?
In efficient machines, how do the MA and IMA compare?
Define compound machines.
Explain how the MA of a bicycle is calculated.
Further define the bicycle in regards to pedal, gear, and wheel radius.
How does a multi-gear bike make the work easier?
Rube Goldberg Machine video
Do page 210: 13-15 for tomorrow